Jofrrey Lupul injury update: The Leafs winger will miss time because of a broken forearm. (AP Photo)

Lupul broke his forearm on Wednesday against the Pittsburgh Penguins when teammate Dion Phaneuf hit him with a puck. Lupul signed the deal three days earlier.

Lupul essentially lost three years to injuries before the Leafs acquired him from the Anaheim Ducks as little more than a spare part in 2011. He clicked alongside Phil Kessel and Tyler Bozak on the team's top line and had a career-best 67 points in 66 games before a shoulder separation ended his season in March.

That production, despite his injury history and defensive issues, was enough to earn him a big-money deal. Now, he's set to lose several weeks of 2013.

One possible replacement for Lupul along the top line is James van Riemsdyk, who scored twice and added an assist in a 5-2 win over Pittsburgh. Toronto acquired van Riemsdyk, 23, in the offseason from the Philadelphia Flyers for defenseman Luke Schenn.

Van Riemsdyk was the No. 2 overall pick in the 2007 draft and seemed poised to break out last season, but struggled with injuries of his own. The 6-3, 200-pound winger had 28 goals in 2010-11 between the regular season and playoffs.